A jammer is a device that transmits a stronger or interfering signal and prevents a radio frequency or band of radio frequencies from use by the legitimate user.
We can examine all jammers and similar equipment and report on the specifications, frequency coverage, power output and whether the equipment is lawful to use or not.
The key fob jammer electronic circuit board shown to the right is a low power jammer seized by Police when found in the possession of a gang of car thieves.
The thieves followed high value cars and jammed the key fob when the owner tried to lock the car so the car remained unlocked. After the owner had gone the thieves opened the car door, plugged in a manufacturer’s diagnostic computer, told the car to reprogram a blank key the thieves had brought with them and then simply drove away the car.
This jammer would typically disrupt car key fobs and other users for at least 75 metres.
The image to the right shows the frequency spectrum of the key fob jammer and the distinct band that it jams therefore disrupting key fobs as well as other legitimate users.
Albeit the intermittent use is unlikely to be noticed.
Jammers such as this one cannot be licensed for use in the UK and their use is illegal. Though it is not illegal to possess one.
We undertake preliminary assessment for free. We offer a free initial consultation, agree the scope of the work to keep down costs, advise clients on progress, and produce jury friendly reports and give evidence in Court.
Phone Spencer Research for an initial free of charge discussion on 01225 482 604 or email.
“The work carried out therefore by Spencer Research Limited in this matter proved to be most valuable
and dictated the course of events”
Purcell Parker Solicitors, Birmingham